Chart of Cylinder Speed Vs. Cv Factor

This helpful downloadable PDF gives you a general idea of what valve Cv rating your valve will require for a particular cylinder bore operating at a given speed.  This chart is not as precise as our PAC Cylinder Sizer but it is simple and has been a handy resource for us since we started in business in 1992.  Be sure to read the note at the bottom of the chart to ensure you arrive at a valve Cv required.
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